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Resistance Welding Electrodes and Current Carrying Elements
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Chromium Copper Alloy and Chromium
Zirconium Copper Alloy: Chromium
Copper Alloy and Chromium Zirconium Copper Alloy is high conductive copper based alloy
used in many applications where conductive property and strength is together required.
Typical applications are
- Spot or projection welding inserts, dies, electrodes
- Seam welding wheels
- Switchgear contacts
- Short-circuiting components
- Arc welding back up bars
- Current carrying arms, shafts.
Supply conditions:
- Castings
- Forgings
- Plates - strips
- Machined components as per drawings
Technical Specifications
Alloy:
- Nominal Chemical composition:
- Cr.C : 0.7 % Cr. And balance Cu
- Cr.Zr.Cu : 0.7Cr, 0.08Zr, balance Cu.
- RWMA Classification : Group A, Class 2, Class 3
Physical and Mechanical properties:
Nominal Indicative Values mentioned.
|
Cr.Cu |
Cr.Zr.Cu |
| UTS MPa |
350 |
330 |
| Yield
0.2 Limit MPa |
250 |
270 |
| Density |
8.9 |
8.9 |
| Hardness,
Rockwell |
70B |
80B |
| Electrical
conductivity |
75 - 80 %
IACS |
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Tungsten CopperIt is a very special material that is
formed to combine High conductive property of Copper and high mechanical wear and erosion
and arc resistance property of tungsten. With the increase of tungsten content the
conductivity drops. Common grades have copper content between 25 to 50 %. The content also
decides the machinabilty properties.
This group of material finds applications where high voltage and current are encountered
Typical properties of group of alloy (25 to 50% tungsten) fall in following band(Nominal
Indicative Values mentioned.)
| Density |
: |
12 - 15 |
| Hardness |
: |
120 - 220 HV10 |
| Electric
conductivity |
: |
29 - 45 % IACS |
| Supply
Condition |
: |
Rods, Flats, Machined
components as per drawings. |
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Pure Electrolytic CopperChromium Copper Alloy and Chromium
Zirconium Copper Alloy is high conductive copper based alloy used in many applications
where conductive property and strength is together required.
Typical applications are
- Spot or projection welding inserts, dies, electrodes
- Seam welding wheels
- Switchgear contacts
- Short-circuiting components
- Arc welding back up bars
- Current carrying arms, shafts.
Supply conditions:
- Castings
- Forgings
- Plates - strips
- Machined components as per drawings
Properties:
Nominal Indicative Values mentioned.
| Purity |
: |
99.90 %
minimum |
| Electric
Conductivity |
: |
99.25 %
IACS |
| Tensile |
: |
22 Kg/sq.mm |
| Elongation |
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40 min |
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For further
details on Resistance Welding
Electrodes, contact marketing |
© August
2000, Jasma Engineering |